大约有 16,000 项符合查询结果（耗时：0.0229秒） [XML]
Why is require_once so bad to use?
...d, so we are already reaching a point thats noticeable to a human. If that script is called frequently it will cause performance issues on the system. Optimization is not a joke and the whole world is not turning around your PC. There are ten thousands of CPUs in use.
– John
...
Copy/duplicate database without using mysqldump
...ATE TABLE x LIKE y;
(See the MySQL CREATE TABLE Docs)
You could write a script that takes the output from SHOW TABLES from one database and copies the schema to another. You should be able to reference schema+table names like:
CREATE TABLE x LIKE other_db.y;
As far as the data goes, you can al...
What's the difference between Perl's backticks, system, and exec?
...nc,
because it is a function.
system
executes a command and your Perl script is continued after the command has finished.
The return value is the exit status of the command.
You can find documentation about it in perlfunc.
backticks
like system executes a command and your perl script is c...
How to show popup message like in Stack Overflow
...
Check bootstrap. There are some pop-up effects, modals, transitions, alerts, everything based on javascript and css.
share
|
improve this answer
|
follow
...
relative path in require_once doesn't work
...
Use
__DIR__
to get the current path of the script and this should fix your problem.
So:
require_once(__DIR__.'/../class/user.php');
This will prevent cases where you can run a PHP script from a different folder and therefore the relatives paths will not work.
Ed...
How do I get PHP errors to display?
...
To display all errors you need to:
1. Have these lines in the PHP script you're calling from the browser (typically index.php):
error_reporting(E_ALL);
ini_set('display_errors', '1');
2.(a) Make sure that this script has no syntax errors
—or—
2.(b) Set display_errors = On in your p...
Select unique or distinct values from a list in UNIX shell script
I have a ksh script that returns a long list of values, newline separated, and I want to see only the unique/distinct values. It is possible to do this?
...
What are the differences between the threading and multiprocessing modules?
...
What Giulio Franco says is true for multithreading vs. multiprocessing in general.
However, Python* has an added issue: There's a Global Interpreter Lock that prevents two threads in the same process from running Python code at the same time. This means that if you have 8 co...
TypeError: p.easing[this.easing] is not a function
...
I am including this file from a CDN: <script src='http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.5/jquery-ui.min.js'></script> Is it this one ? Or shall i include another file?
– Malloc
Sep 25 '12 at 23:02
...
Which version of MVC am I using?
...r some reason, feeling a little dumb. How do I know? I'm using .net 4 with VS2010.
9 Answers
...